Glass samples of CuO/Fe2O3 reinforced bismuth borate containing ZnO and NaF with the chemical form 65B2O3-15NaF-15ZnO- 5Bi2O3-XFe2O3- YCuO: (X,Y) = (0.0,0.0) {S0}, (0.1, 0.4) {S1}, (0.2, 0.3) {S2}, (0.3, 0.2) {S3}, (0.4, 0.1) {S4}, and (0.5, 0.0) {S5} mol.% were prepared via melt quenching procedure. The influence of CuO/Fe2O3 on the structure, physical properties, and γ-ray attenuation capability was examined. The non-crystallinity nature of samples was confirmed by XRD measurements and SEM images. The density (Ds) of samples increased from 3.10 to 3.30 g/cm3 as Fe2O3concentration increase from 0.0 to 0.5 mol.%. The molar volume (Vm) declined from 28.05 to 26.62 cm3/mol. The parameter of oxygen packing density (OPD) enhanced from 80.20 to 85.09. The oxygen molar volume (OMV) changed as 12.47 cm3/mol for S0 sample and 11.75 cm3/mol for S5 sample. Direct (Eopt-direct) and indirect (Eopt-indirect) optical band gaps decreased with doping with Fe+3 and Cu2+ ions in the glass networks. Eopt-direct decreased from 3.685 to 3.620 eV, while Eopt-indirect varied between 3.642 and 3.595 eV. Undoped sample S0 exhibited a broad strong UV absorption which related to unavoidable trace ferric ions, Fe3+ ions, impurities contaminated within the raw materials used for the preparation of the glasses. For doped glasses UV-visible bands due to doping with 3d transition metal ions. In terms of γ-ray shielding, linear (LAC) absorption coefficient followed the order: S0LAC < S1LAC < S2LAC < S3LAC < S4LAC < S5LAC. The S5 glass sample has the lowest half value layer (HVL) and mean free path (MFP). The effective atomic number (<InlineEquation ID="IEq1"> <EquationSource Format="TEX">${\text{Z}}_{\text{eff}})$</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msub> <mtext>Z</mtext> <mtext>eff</mtext> </msub> <mrow> <mo stretchy="false">)</mo> </mrow> </mrow> </math></EquationSource> </InlineEquation> has the same trend of MAC. The suggested S5 sample presents the best γ-ray shielding capability among the investigated samples. Results confirm that the sample coded as S5 is superior as γ-ray shields compared to ordinary concrete (OC) and RS-253-G18 glasses.

Structural, Physical, Optical Properties as well γ-ray Attenuation Capability of Bismuth Borate Containing Fe₂O₃ and CuO: Potential Use in Optical and Radiation Shielding Applications

期刊论文
发表日期：

2025年9月15日

查看全文

Nada Alfryyan,
Norah A. M. Alsaif,
Hanan Al-Ghamdi,
Shaaban M. Shaaban,
M. S. Shams,
Adel M. El-Refaey,
R. A. Elsad,
A. M. Abdelghany,
Y. S. Rammah

摘要

Glass samples of CuO/Fe₂O₃ reinforced bismuth borate containing ZnO and NaF with the chemical form 65B₂O₃-15NaF-15ZnO- 5Bi₂O₃-XFe₂O₃- YCuO: (X,Y) = (0.0,0.0) {S0}, (0.1, 0.4) {S1}, (0.2, 0.3) {S2}, (0.3, 0.2) {S3}, (0.4, 0.1) {S4}, and (0.5, 0.0) {S5} mol.% were prepared via melt quenching procedure. The influence of CuO/Fe₂O₃ on the structure, physical properties, and γ-ray attenuation capability was examined. The non-crystallinity nature of samples was confirmed by XRD measurements and SEM images. The density (D_s) of samples increased from 3.10 to 3.30 g/cm³ as Fe₂O₃concentration increase from 0.0 to 0.5 mol.%. The molar volume (V_m) declined from 28.05 to 26.62 cm³/mol. The parameter of oxygen packing density (OPD) enhanced from 80.20 to 85.09. The oxygen molar volume (OMV) changed as 12.47 cm³/mol for S0 sample and 11.75 cm³/mol for S5 sample. Direct (E_opt-direct) and indirect (E_opt-indirect) optical band gaps decreased with doping with Fe⁺³ and Cu²⁺ ions in the glass networks. E_opt-direct decreased from 3.685 to 3.620 eV, while E_opt-indirect varied between 3.642 and 3.595 eV. Undoped sample S0 exhibited a broad strong UV absorption which related to unavoidable trace ferric ions, Fe³⁺ ions, impurities contaminated within the raw materials used for the preparation of the glasses. For doped glasses UV-visible bands due to doping with 3d transition metal ions. In terms of γ-ray shielding, linear (LAC) absorption coefficient followed the order: S0_LAC < S1_LAC < S2_LAC < S3_LAC < S4_LAC < S5_LAC. The S5 glass sample has the lowest half value layer (HVL) and mean free path (MFP). The effective atomic number ( ${\text{Z}}_{\text{eff}})$ $Z_{eff})$ has the same trend of MAC. The suggested S5 sample presents the best γ-ray shielding capability among the investigated samples. Results confirm that the sample coded as S5 is superior as γ-ray shields compared to ordinary concrete (OC) and RS-253-G18 glasses.

Structural, Physical, Optical Properties as well γ-ray Attenuation Capability of Bismuth Borate Containing Fe2O3 and CuO: Potential Use in Optical and Radiation Shielding Applications

摘要

Structural, Physical, Optical Properties as well γ-ray Attenuation Capability of Bismuth Borate Containing Fe₂O₃ and CuO: Potential Use in Optical and Radiation Shielding Applications